[Hackage] #199: when installing a new version of GHC, there should be a way to upgrade my packages

[Hackage]

#199: when installing a new version of GHC, there should be a way to upgrade my
packages
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  Reporter:  guest               |        Owner:                 
      Type:  enhancement         |       Status:  new            
  Priority:  normal              |    Milestone:  Cabal-1.8      
 Component:  cabal-install tool  |      Version:  1.2.3.0        
  Severity:  normal              |   Resolution:                 
  Keywords:                      |   Difficulty:  easy (<4 hours)
Ghcversion:  6.8.2               |     Platform:  Linux          
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Comment (by Saizan):

 How does this interact with keeping multiple compilers/versions side by
 side?
 maybe we should have a world file for each one and be able to install the
 packages in world-compiler1 using compiler2

-- 
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/199#comment:6>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects